CN111139693B - Vibration anti-loosening fastener assembly for heavy-duty railway track and installation method thereof - Google Patents
Vibration anti-loosening fastener assembly for heavy-duty railway track and installation method thereof Download PDFInfo
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- CN111139693B CN111139693B CN202010049015.2A CN202010049015A CN111139693B CN 111139693 B CN111139693 B CN 111139693B CN 202010049015 A CN202010049015 A CN 202010049015A CN 111139693 B CN111139693 B CN 111139693B
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000009434 installation Methods 0.000 title claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 244
- 229910052742 iron Inorganic materials 0.000 claims abstract description 122
- 241001669679 Eleotris Species 0.000 claims description 14
- 239000003292 glue Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 238000009417 prefabrication Methods 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 12
- 230000009193 crawling Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/62—Rail fastenings incorporating resilient supports
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Railway Tracks (AREA)
Abstract
The invention discloses a vibration anti-loosening fastener assembly for a heavy-duty railway track, which comprises an embedded iron seat, a bolt, a nut and a spring strip, wherein the embedded iron seat consists of an upper part and a lower part which are connected in a clamping way, the upper surface of the upper embedded iron seat is provided with an arc-shaped groove, the lower part of the arc-shaped groove is provided with a T-shaped bolt hole, the bolt and the nut are fixed in the T-shaped bolt hole, and the nut is an up-down reverse double nut, so that the nut locking function can be realized; the elastic strip is of a hollow C-shaped semi-ring structure with a downward opening, the head end of the elastic strip is provided with an S-shaped return bend, the tail end of the elastic strip is provided with a C-shaped return bend, the bolt penetrates through the upper part of the elastic strip and the C-shaped return bend thereof, and the nut is pressed on the elastic strip. The invention also discloses a mounting method of the vibration anti-loosening fastener assembly for the heavy-duty railway track, which is simple and convenient to mount and easy to operate.
Description
Technical Field
The invention belongs to the technical field of vibration prevention and reinforcement of heavy-duty railway tracks, and particularly relates to a vibration anti-loosening fastener assembly for heavy-duty railway tracks and an installation method thereof.
Background
The heavy-duty railway transportation is a transportation method with development prospects in the current world freight industry, is widely valued by railways of all countries of the world, such as the United states, canada, brazil, australia, south Africa and the like to start a pair of heavy-duty trains due to the characteristics of large transportation capacity, high efficiency, low transportation cost and all weather, and has the advantages of accelerating the industry green upgrading, reducing the energy consumption, optimizing the rapid promotion of recombination, gradually increasing the research strength of heavy-duty transportation of the railways of China, and completing and starting the operation of heavy-duty transportation railways of Daqin, shuo Huang, meng Hua, haoJi and the like.
Along with the opening operation of a plurality of heavy haul railway lines, the problems of heavy haul railways are increasingly remarkable, wherein, as the heavy haul railway has larger load, larger vibration can be generated on the track and the roadbed compared with the common freight train. The vibration energy directly affects the railway track fastener assembly, so that parts of the railway track fastener assembly are gradually loosened and destroyed, a large amount of manual inspection lines are required, the parts damaged by vibration are replaced, and a large amount of manpower and financial resources are consumed; and also brings great potential safety hazard to heavy railway transportation safety.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the vibration anti-loosening fastener assembly for the heavy-duty railway track.
Another object of the present invention is to provide a method for installing a vibration anti-loosening fastener assembly for heavy haul railway rails, which is convenient to install and simple to operate.
The invention is realized by the following technical scheme:
The utility model provides a heavy haul railway track vibration locking fastener assembly, includes embedded iron seat, bolt, nut, bullet strip, the embedded iron seat includes lower part embedded iron seat, upper portion embedded iron seat, lower part embedded iron seat leading flank is equipped with L type recess, the vertical portion of L type recess communicates to the upper surface of lower part embedded iron seat, upper portion embedded iron seat bottom is provided with the L type linking arm the same with L type recess size in the embedded iron seat of lower part, L type recess and L linking arm block are connected; the upper surface of the upper embedded iron seat is provided with an arc-shaped groove, the bottom of the arc-shaped groove is provided with a T-shaped bolt hole, a bolt and a nut are fixed in the T-shaped bolt hole, the nut consists of an upper nut and a lower nut, the lower surface of the upper nut and the upper surface of the lower nut are mutually matched and tightly meshed saw tooth surfaces, the saw tooth gradient of the saw tooth surfaces is larger than the thread gradient of the bolt, and an elastic washer is arranged between the upper nut and the lower nut; the elastic strip is of a C-shaped semi-ring structure with downward openings, the head end of the C-shaped semi-ring structure is provided with an S-shaped return bend, the tail end of the C-shaped semi-ring structure is provided with a C-shaped return bend, the C-shaped return bend is fixed in an arc-shaped groove of the upper embedded iron seat, two limiting holes are formed in the bottom of the inner side wall of the arc-shaped groove, the tail ends of the C-shaped return bends are inserted into the limiting holes, and the S-shaped return bend ends of the two C-shaped semi-ring structures are connected through a connecting part; the bolt passes through the upper part of the elastic strip and the C-shaped return bend thereof, the elastic strip is fastened in the arc-shaped groove through the nut, and the radian of the lower part of the C-shaped return bend is the same as that of the bottom of the outer side wall of the arc-shaped groove.
In the technical scheme, the L-shaped groove is internally coated with the coagulating glue.
In the above technical scheme, the embedded iron seat in lower part is trapezoidal, the longitudinal section of trapezoidal body is wide isosceles trapezoid down narrow, the embedded iron seat in lower part lower extreme is connected with the cuboid extension wing that the level set up, the embedded iron seat in lower part with form as an organic whole between the rectangle extension wing.
In the technical scheme, the outer surface of the S-shaped return bend of the elastic strip is provided with the plastic insulating sleeve.
In the technical scheme, the elastic strip is made of hot-rolled spring round steel.
In the above technical scheme, the bottom of upper portion pre-buried iron seat and arc recess homonymy still horizontally provided with stable pterygoid lamina.
A mounting structure of a vibration anti-loosening fastener assembly for a heavy haul railway track and the track, comprising two vibration anti-loosening fastener assemblies for the heavy haul railway track, the track and a rail subplate according to claim 1;
the two heavy-duty railway track vibration anti-loosening fastener assemblies are symmetrically arranged on the left side and the right side of the track, and the track lower base plate is arranged below the track;
the rail lower backing plate left and right sides is provided with the recess, upper portion pre-buried iron seat keeps away from the one end of arc recess is blocked respectively and is fixed in the recess of rail lower backing plate left and right sides, the S back bend fastening of bullet strip the orbital downside reason.
In the technical scheme, the surface of the rail lower base plate is coated with the insulating layer.
A method of installing a vibration anti-loose fastener assembly for heavy haul railway track according to claim 1, wherein:
step 1, when prefabricating a sleeper, burying and fixing lower embedded iron seats in the sleeper, wherein the distance between the two lower embedded iron seats is 18cm; meanwhile, a reserved space is reserved at one side of the lower embedded iron seat, which is provided with the L-shaped groove opening;
Step 2, after sleeper prefabrication is completed, smearing solidifying glue in the L-shaped groove of the lower embedded iron seat, installing an L-shaped connecting arm of the upper embedded iron seat in the L-shaped groove of the lower embedded iron seat, sealing a reserved space on the side surface of the embedded iron seat on the sleeper by using an iron block after installation is completed, and sealing a gap by using sealing glue;
Step 3, placing the rail lower base plate between the left embedded iron seat and the right embedded iron seat, ensuring that the embedded iron seats are accurately clamped and fixed in the left groove and the right groove of the rail lower base plate, placing the rail on the rail lower base plate, and ensuring that the rail is positioned on the middle line of the left embedded iron seat and the right embedded iron seat;
and 4, firstly inserting the C-shaped return bend tail end on the spring strip into a limiting hole on the inner side wall of the arc-shaped groove of the upper embedded iron seat, then pressing the spring strip against the embedded iron seat, ensuring that the S-shaped return bend at the head end of the spring strip is buckled on the lower side edge of the track, fixing the C-shaped return bend at the tail end of the spring strip in the arc-shaped groove on the upper surface of the embedded iron seat, screwing a lower nut, an elastic washer and an upper nut into a bolt, then penetrating the bolt into the upper part of the spring strip and the C-shaped return bend thereof, screwing into the T-shaped bolt hole of the embedded iron seat, screwing the upper nut and the lower nut at the same time, and pressing the spring strip.
In the above technical scheme, step 1, when the lower embedded iron seat is arranged and fixed in the sleeper, one side of the lower embedded iron seat with an opening of the L-shaped groove is opposite to the running direction of the train.
In the above technical scheme, step 4, the upper nut and the lower nut are screwed at the same time, and the elastic strip is pressed until 60-70 kN pressure is generated (or torque of 16-17 kN.m is adopted for screwing).
The invention has the advantages and beneficial effects that:
(1) The invention cancels the traditional gauge baffle, utilizes the S-shaped return bend at the front end of the elastic strip to bear against the lower edge of the track, fully utilizes the longitudinal elasticity of the elastic strip, does not singly use the vertical pressure of the elastic strip, improves the utilization rate of the elastic strip, cancels the traditional insulating block, utilizes the mode of externally adding an insulating sleeve to the elastic strip to replace the elastic strip, reduces the number of connecting pieces between the track and the elastic strip, leads the elastic strip to be in direct contact with the track, not only generates vibration-proof loosening effect, but also generates blocking effect on track crawling, and ensures the safety and reliability of the use of the anti-loosening fastener due to the C-shaped structure of the elastic strip fastener. And design out the arc recess that suits with the bullet strip shape to be provided with spacing hole at arc recess medial surface, make the terminal direct insertion that can return to of C, both restricted the vertical removal of bullet strip, prevent that the bullet strip from vibrating not hard up, also restricted the vertical removal of bullet strip, prevent that track crawling effect from driving the bullet strip and producing longitudinal displacement, make bullet strip and pre-buried iron make simultaneously and combine as an organic wholely, produce better vibration proof not hard up effect.
(2) The embedded iron seat is divided into an upper part and a lower part, the installation method is simple, the later maintenance and the replacement are convenient, the rail plate is prevented from being damaged during the replacement, the embedded iron seat on the upper part can be directly replaced, the quick replacement is realized, the solidification glue is smeared on the contact surfaces of the two parts of the iron seat, the damping effect can be enhanced, and the effects of bonding and looseness prevention can be achieved.
(3) The existing single functions of the bolt and the nut are improved, the vibration-proof locking function of the bolt and the nut is increased, the traditional single nut is improved into an up-down reverse double nut, the nut locking function can be realized, an elastic washer is added between the two nuts, and the vibration-absorbing effect of the bolt and the nut is increased.
(4) The invention requires the opening direction of the side surface of the L-shaped groove of the lower embedded iron seat to be opposite to the running direction of the train, counteracts the longitudinal crawling effect of the train rail caused by extruding the rail due to the large load of the heavy haul railway, and the side surface of the lower embedded iron seat requires the use of iron blocks, thereby being convenient for the rapid disassembly and replacement in the later stage.
(5) Compared with the traditional anti-loosening device for the railway track, the anti-loosening device for the railway track has the advantages of fewer parts, simple structure, low manufacturing cost and convenient maintenance operation, and saves a great amount of manpower, material resources and financial resources while meeting the requirement of fixing the heavy-duty railway track.
Drawings
Fig. 1 is a front view of a vibration anti-loosening fastener assembly for heavy haul railway rails.
Fig. 2 is a front view of a bolt and nut of a vibration anti-loose fastener assembly for a heavy haul railway track.
Fig. 3 is a front view of a spring strip of a vibration anti-loose fastener assembly for heavy haul railway track.
Fig. 4 is a perspective view of a spring strip of a vibration anti-loose fastener assembly for a heavy haul railway track.
Fig. 5 is a perspective view of an upper pre-buried iron seat of a vibration anti-loose fastener assembly for a heavy-duty railway track.
Fig. 6 is a perspective view of a lower embedded iron seat of a vibration anti-loose fastener assembly for a heavy haul railway.
Fig. 7 is a top view of a rail pad of a vibration anti-loose fastener assembly for a heavy haul railway rail.
Fig. 8 is a view showing the installation effect of the vibration anti-loosening fastener assembly for the heavy-duty railway track.
Wherein: the novel steel rail comprises a 1-lower embedded iron seat, a 2-upper embedded iron seat, a 3-L-shaped connecting arm, a 4-arc-shaped groove, a 5-elastic strip, a 6-T-shaped bolt hole, a 7-bolt, an 8-nut, an 8-1-upper nut, an 8-2-lower nut, a 9-elastic gasket, a 10-S-shaped return bend, an 11-C-shaped return bend, a 12-insulating sleeve, a 13-rail, a 14-rail lower base plate and a 15-limiting hole.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
In order to make the person skilled in the art better understand the solution of the present invention, the following describes the solution of the present invention with reference to specific embodiments.
Example 1
The utility model provides a heavy haul railway vibration anti-loosening fastener assembly, includes embedded iron seat, bolt 7, nut 8, bullet strip 5, embedded iron seat includes lower part embedded iron seat 1, upper portion embedded iron seat 2, lower part embedded iron seat 1 upper surface and unilateral face are provided with the opening, are equipped with L type recess in inside, upper portion embedded iron seat 2 bottom is provided with the L type linking arm 3 the same with lower part embedded iron seat 1L type recess size, L type recess and L linking arm block are connected; the upper surface of the upper embedded iron seat 2 is provided with an arc groove 4, the bottom of the arc groove 4 is provided with a T-shaped bolt hole 6, a bolt 7 and a nut 8 are fixed in the T-shaped bolt hole 6, the nut 8 consists of an upper nut and a lower nut, the lower surface of the upper nut 8-1 and the upper surface of the lower nut 8-2 are in regular saw-tooth shape, the saw teeth of the upper nut and the lower nut are tightly meshed, the saw tooth gradient of the nut 8 is larger than the thread gradient of the bolt 7, the staggered lifting distance of the nut 8 is larger than the thread lifting distance, a fastener in severe vibration and power load is effectively locked, an elastic washer 9 is arranged between the upper nut and the lower nut, when the nut 8 is under vibration pressure and generates rotation trend, the pressure is transmitted to the elastic washer 9 to be friction force, the elastic washer 9 slowly crawls between the upper nut 8 and the lower nut 8, and the vibration pressure is relieved; the bullet strip 5 is cavity C style of calligraphy semi-ring structure of opening decurrent, bullet strip 5 head end is provided with S type return bend 10, and the tail end is provided with C type return bend 11, S type return bend 10 front end withholds track lower limb, replaces the effect of track gauge baffle in the traditional track fastener subassembly, S type return bend 10 end and track contact part cover have insulating cover, produce insulating effect, replace the insulating piece in the traditional track fastener subassembly, the inside wall bottom of arc recess 4 is provided with two spacing holes 15, the end that C type returned bend 11 inserts in spacing hole 15, C type return bend 11 is fixed in the arc recess 4 of upper portion pre-buried iron seat 2, and cooperates fixedly with the arc angle of arc recess 4, prevents that C type return bend from producing lateral displacement, bolt 7 passes bullet strip 5 upper portion and C type return bend 11, nut 8 presses on bullet strip 5. The C-shaped semi-ring structure of the elastic strip 5 ensures that the bending parts at the two ends of the elastic strip have larger buckling force, thereby ensuring the overall stability of the fastener. The arc-shaped groove which is matched with the shape of the elastic strip is designed, and a limit hole is formed in the side face of the arc-shaped groove, so that the tail end of the C-shaped return bend can be directly inserted, the vertical displacement of the elastic strip is limited, the vibration loosening of the elastic strip is prevented, the longitudinal movement of the elastic strip is also limited, the track crawling effect is prevented from driving the elastic strip to generate longitudinal displacement, and meanwhile, the elastic strip and the embedded iron are combined into a whole, so that a better vibration-proof loosening effect is generated.
Example two
The utility model provides a heavy haul railway vibration anti-loosening fastener assembly, includes embedded iron seat, bolt 7, nut 8, bullet strip 5, embedded iron seat includes lower part embedded iron seat 1, upper portion embedded iron seat 2, lower part embedded iron seat 1 upper surface and unilateral face are provided with the opening, are equipped with L type recess in inside, upper portion embedded iron seat 2 bottom is provided with the L type linking arm 3 the same with lower part embedded iron seat 1L type recess size, L type recess and L linking arm block are connected; the L-shaped groove is internally coated with the solidifying glue, so that the upper and lower iron seats are tightly connected together, and the functions of vibration prevention and anti-loose can be achieved; the lower embedded iron seat 1 is a trapezoid body, the longitudinal section of the trapezoid body is an isosceles trapezoid with a wide upper part and a narrow lower part, the lower end of the lower embedded iron seat 1 is connected with a cuboid expansion wing, and an integrated structure is formed between the lower embedded iron seat 1 and the rectangular expansion wing and is used for enabling the embedded iron seat to generate stronger ground grabbing force; the upper surface of the upper embedded iron seat 2 is provided with an arc groove 4, the lower part of the arc groove 4 is provided with a T-shaped bolt hole 6, a bolt 7 and a nut 8 are fixed in the T-shaped bolt hole 6, the nut 8 consists of an upper nut and a lower nut, the lower surface of the upper nut 8-1 and the upper surface of the lower nut 8-2 are in regular saw-tooth shape, the saw-tooth of the upper nut and the saw-tooth of the lower nut are tightly meshed, the saw-tooth gradient of the nut 8 is larger than the thread gradient of the bolt 7, the staggered lifting distance of the nut 8 is larger than the thread lifting distance, a fastener in severe vibration and power load is effectively locked, an elastic washer 9 is arranged between the upper nut and the lower nut, when the nut 8 is under vibration pressure and generates rotation trend, the pressure is transmitted to the elastic washer 9 to be friction force, the elastic washer 9 slowly crawls between the upper nut 8 and the lower nut 8, and the vibration pressure is relieved; the elastic strip 5 is of a hollow C-shaped semi-ring structure with a downward opening and made of hot-rolled spring round steel, the hot-rolled spring round steel is high in hardness, good in wear resistance and strong in bearing capacity, an S-shaped return bend 10 is arranged at the head end of the elastic strip 5, a C-shaped return bend 11 is arranged at the tail end of the elastic strip, the C-shaped return bend 11 is fixed in a groove 4 of an upper embedded iron seat 2, and a plastic insulating sleeve 12 is arranged at the S-shaped return bend 10 of the elastic strip 5 and used for blocking current transmission between a track 13 and the elastic strip 5; the bolt 7 passes through the upper part of the elastic strip 5 and the C-shaped return bend 11 thereof, and the nut 8 is pressed on the elastic strip 5. The C-shaped semi-ring structure of the elastic strip 5 ensures that the bending parts at the two ends of the elastic strip have larger buckling force, thereby ensuring the overall stability of the fastener.
Example III
A method for installing a vibration anti-loosening fastener assembly of a heavy-duty railway track comprises the following steps of
Step 1, when prefabricating a sleeper, embedding and fixing lower embedded iron seats 1 in the sleeper, wherein the distance between the two lower embedded iron seats 1 is 18cm; meanwhile, a space is reserved at one side of the opening of the lower embedded iron seat 1, so that the upper embedded iron seat 2 can be conveniently installed, and one side of the opening of the lower embedded iron seat 1 with an L-shaped groove is opposite to the running direction of a train;
And 2, after the sleeper is prefabricated, smearing the solidification glue in the L-shaped groove of the lower embedded iron seat 1, and installing the L-shaped connecting arm 3 of the upper embedded iron seat 2 in the groove of the lower embedded iron seat 1. After the installation is finished, the side space of the embedded iron seat on the sleeper is blocked by using an iron block, and the gap is sealed by using sealant;
Step 3, placing the rail lower base plate 14 between the left embedded iron seat and the right embedded iron seat, ensuring that the embedded iron seats are accurately clamped and fixed in left and right grooves of the rail lower base plate 14, placing the rail 13 on the rail lower base plate 14, and ensuring that the rail 13 is positioned on the middle line of the left and right embedded iron seats;
And 4, firstly inserting the tail end of a C-shaped return bend 11 on the elastic strip 5 into a limit hole 15 on the inner side wall of an arc-shaped groove of an upper embedded iron seat, then pressing the elastic strip 5 against the embedded iron seat, ensuring that an S-shaped return bend 10 at the head end of the elastic strip 5 is buckled on the lower side edge of a track 13, fixing the C-shaped return bend 11 at the tail end of the elastic strip 5 in the arc-shaped groove 4 on the upper surface of the embedded iron seat, screwing a lower nut 8-2, an elastic washer 9 and an upper nut 8-1 onto a bolt 7, then screwing the bolt 7 into a T-shaped bolt hole 6 of the embedded iron seat through the upper part of the elastic strip 5 and the C-shaped return bend 11 thereof, screwing the upper nut 8-1 and the lower nut 8-2 at the same time, and pressing the elastic strip 5 until 60-70 kN pressure is generated (or torque screwing of 16-17 kN.m is adopted).
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The foregoing has described exemplary embodiments of the invention, it being understood that any simple variations, modifications, or other equivalent arrangements which would not unduly obscure the invention may be made by those skilled in the art without departing from the spirit of the invention.
Claims (8)
1. The utility model provides a heavy haul railway vibration anti-loosening fastener assembly, its characterized in that includes embedded iron seat, bolt (7), nut (8), bullet strip (5), embedded iron seat includes lower part embedded iron seat (1), upper portion embedded iron seat (2), the front side of lower part embedded iron seat (1) is equipped with L type recess, the vertical portion of L type recess communicates to the upper surface of lower part embedded iron seat (1), upper portion embedded iron seat (2) bottom be provided with lower part embedded iron seat (1) in L type linking arm (3) that L type recess size is the same, L type recess and L linking arm block are connected; the upper surface of the upper embedded iron seat (2) is provided with an arc-shaped groove (4), the bottom of the arc-shaped groove (4) is provided with a T-shaped bolt hole (6), a bolt (7) and a nut (8) are fixed in the T-shaped bolt hole (6), the nut (8) consists of an upper nut (8-1) and a lower nut (8-2), the lower surface of the upper nut (8-1) and the upper surface of the lower nut (8-2) are mutually matched and tightly meshed sawtooth surfaces, the sawtooth gradient of the sawtooth surface is larger than the thread gradient of the bolt (7), and an elastic gasket (9) is arranged between the upper nut (8-1) and the lower nut (8-2); the elastic strip (5) is of a C-shaped semi-ring structure with downward openings, the head end of the C-shaped semi-ring structure is provided with an S-shaped return bend (10), the tail end of the C-shaped semi-ring structure is provided with a C-shaped return bend (11), the C-shaped return bend (11) is fixed in an arc-shaped groove (4) of the upper embedded iron seat (2), two limiting holes (15) are formed in the bottom of the inner side wall of the arc-shaped groove (4), the tail ends of the C-shaped return bends (11) are inserted into the limiting holes (15), and the ends of the S-shaped return bends (10) of the two C-shaped semi-ring structures are connected through connecting parts; the bolts (7) penetrate through the upper parts of the elastic strips (5) and the C-shaped return bends (11) of the elastic strips, the elastic strips (5) are fastened in the arc-shaped grooves (4) through the nuts (8), and the radian of the lower parts of the C-shaped return bends (11) is the same as that of the bottoms of the outer side walls of the arc-shaped grooves (4);
The lower embedded iron seat (1) is a trapezoid body, the longitudinal section of the trapezoid body is an isosceles trapezoid with a wide upper part and a narrow lower part, the lower end of the lower embedded iron seat (1) is connected with a cuboid expansion wing which is horizontally arranged, and the lower embedded iron seat (1) and the cuboid expansion wing are integrally formed;
The outer surface of the S-shaped return bend (10) of the elastic strip (5) is provided with a plastic insulating sleeve (12).
2. The heavy haul railway rail vibration anti-loosening fastener assembly of claim 1, wherein: and the L-shaped groove is internally coated with a setting adhesive.
3. The heavy haul railway rail vibration anti-loosening fastener assembly of claim 1, wherein: the elastic strip (5) is made of hot-rolled spring round steel.
4. A mounting structure of a vibration anti-loosening fastener assembly for a heavy-duty railway track and the track, which is characterized by comprising the track (13), a track lower base plate (14) and two vibration anti-loosening fastener assemblies for the heavy-duty railway track according to claim 1;
The two heavy-duty railway track vibration anti-loosening fastener assemblies are symmetrically arranged on the left side and the right side of the track (13), and the track (13) is arranged on the track lower base plate (14);
Grooves are formed in the left side and the right side of the rail lower base plate (14), one ends, far away from the arc-shaped grooves (4), of the two upper embedded iron seats (2) are respectively clamped and fixed in the grooves in the left side and the right side of the rail lower base plate (14), and the S-shaped return bends of the elastic strips (5) are fastened to the lower side edges of the rails (13).
5. The mounting structure of a vibration anti-loosening fastener assembly and a rail for a heavy haul railway according to claim 4, wherein: the surface of the rail pad (14) is coated with an insulating layer.
6. A method of installing a vibration anti-loose fastener assembly for heavy haul railway track according to claim 1, wherein:
Step 1, when prefabricating a sleeper, embedding and fixing two lower embedded iron seats (1) in the sleeper, wherein the distance between the two lower embedded iron seats (1) is 18cm; meanwhile, reserving a space at one side of the lower embedded iron seat (1) with the opening of the L-shaped groove;
Step 2, after sleeper prefabrication is completed, smearing solidifying glue in the L-shaped groove of the lower embedded iron seat (1), installing an L-shaped connecting arm (3) of the upper embedded iron seat (2) in the L-shaped groove of the lower embedded iron seat (2), sealing a reserved space on the side surface of the embedded iron seat on the sleeper by using an iron block after installation is completed, and sealing a gap by using sealing glue;
Step 3, placing the rail lower base plate (14) between the left embedded iron seat and the right embedded iron seat, ensuring that the embedded iron seats are accurately clamped and fixed in left and right grooves of the rail lower base plate (14), placing the rail (13) on the rail lower base plate (14), and ensuring that the rail (13) is positioned on the middle line of the left embedded iron seat and the right embedded iron seat;
Step 4, the tail end of a C-shaped return bend (11) on the elastic strip (5) is firstly inserted into a limiting hole (15) on the inner side wall of an arc-shaped groove of an upper embedded iron seat, then the elastic strip (5) is pressed and pressed on the embedded iron seat, the S-shaped return bend (10) at the head end of the elastic strip (5) is ensured to be buckled on the lower side edge of a track (13), the C-shaped return bend (11) at the tail end of the elastic strip (5) is fixed in the arc-shaped groove (4) on the upper surface of the embedded iron seat, a lower nut (8-2), an elastic washer (9) and an upper nut (8-1) are screwed into a bolt (7), the bolt (7) is penetrated through the upper part of the elastic strip (5) and the C-shaped return bend (11) thereof, the elastic strip (5) is screwed into the T-shaped bolt hole (6), and the upper nut (8-1) and the lower nut (8-2) are screwed simultaneously, and the elastic strip (5) is pressed.
7. The method according to claim 6, wherein in the step 1, when the lower embedded iron seat (1) is fixed in the sleeper, the side of the lower embedded iron seat (1) with the opening of the L-shaped groove is opposite to the running direction of the train.
8. The method according to claim 6, wherein the step 4 is to screw the upper nut (8-1) and the lower nut (8-2) simultaneously, and press the elastic strip (5) until a pressure of 60-70 kN is generated.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB916192A (en) * | 1960-01-04 | 1963-01-23 | Cornelius Johan Kruger | Improvements relating to sections for constructing railway sleepers |
| CN201232141Y (en) * | 2008-01-30 | 2009-05-06 | 中原利达铁路轨道技术发展有限公司 | Anti-fatigue elastic bar IV type fastener |
| WO2010017843A1 (en) * | 2008-08-14 | 2010-02-18 | Vossloh Werke Gmbh | Device for mounting railroad tracks on a substructure |
| CN102119249A (en) * | 2008-06-13 | 2011-07-06 | 沃斯维恩股份公司 | Laterally adjustable rail fastening system |
| KR101067832B1 (en) * | 2010-12-29 | 2011-09-27 | 삼표이앤씨 주식회사 | Concrete railroad rail fastener |
| CN203403334U (en) * | 2013-07-19 | 2014-01-22 | 龙运生 | Railway gauge regulating device |
| CN108625233A (en) * | 2018-05-31 | 2018-10-09 | 中国铁道科学研究院铁道建筑研究所 | It is a kind of to have bolt fastening component suitable for what axis weighed 35~40 tons of heavy haul railways |
| CN211972925U (en) * | 2020-01-16 | 2020-11-20 | 石家庄铁道大学 | Heavy haul railway track vibration anti-loosening fastener assembly and mounting structure thereof with track |
-
2020
- 2020-01-16 CN CN202010049015.2A patent/CN111139693B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB916192A (en) * | 1960-01-04 | 1963-01-23 | Cornelius Johan Kruger | Improvements relating to sections for constructing railway sleepers |
| CN201232141Y (en) * | 2008-01-30 | 2009-05-06 | 中原利达铁路轨道技术发展有限公司 | Anti-fatigue elastic bar IV type fastener |
| CN102119249A (en) * | 2008-06-13 | 2011-07-06 | 沃斯维恩股份公司 | Laterally adjustable rail fastening system |
| WO2010017843A1 (en) * | 2008-08-14 | 2010-02-18 | Vossloh Werke Gmbh | Device for mounting railroad tracks on a substructure |
| KR101067832B1 (en) * | 2010-12-29 | 2011-09-27 | 삼표이앤씨 주식회사 | Concrete railroad rail fastener |
| CN203403334U (en) * | 2013-07-19 | 2014-01-22 | 龙运生 | Railway gauge regulating device |
| CN108625233A (en) * | 2018-05-31 | 2018-10-09 | 中国铁道科学研究院铁道建筑研究所 | It is a kind of to have bolt fastening component suitable for what axis weighed 35~40 tons of heavy haul railways |
| CN211972925U (en) * | 2020-01-16 | 2020-11-20 | 石家庄铁道大学 | Heavy haul railway track vibration anti-loosening fastener assembly and mounting structure thereof with track |
Non-Patent Citations (1)
| Title |
|---|
| 增建Ⅱ线铁路一次铺设跨区间无缝线路轨道施工技术;刘峰;;铁道建筑;20070915(09);第85-88页 * |
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